1121031310331 has 8 divisors (see below), whose sum is σ = 1127391208944. Its totient is φ = 1114673240160.

The previous prime is 1121031310313. The next prime is 1121031310339. The reversal of 1121031310331 is 1330131301211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121031310331 is a prime.

It is a super-2 number, since 2×1121031310331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121031310339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782081 + ... + 1689293.

It is an arithmetic number, because the mean of its divisors is an integer number (140923901118).

Almost surely, 2^{1121031310331} is an apocalyptic number.

1121031310331 is a deficient number, since it is larger than the sum of its proper divisors (6359898613).

1121031310331 is an equidigital number, since it uses as much as digits as its factorization.

1121031310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914221.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1121031310331 its reverse (1330131301211), we get a palindrome (2451162611542).

The spelling of 1121031310331 in words is "one trillion, one hundred twenty-one billion, thirty-one million, three hundred ten thousand, three hundred thirty-one".